October 2017

Volume 53 , Issue 2

I N S I D E T H I S I S S U E :

President's Message 2

YEA Bowling Night 2

Corporate Sponsors 3

2017-2018 Directory 3

ASHRAE Winter Meeting 3

2017-2018 Programs 4

CTTC Article 5

ASPE Announcement 6

Membership 7

Basic HVAC Design Course

8-10

QUAKER C ITY CLIMATE

Registration is now open for the

2017-2018 Basic HVAC Design Course.

See page 8 for more details!

2017-2018

President

Jeff Crozier, PE, CEM, LEED AP

President-Elect

Mike Radio, PE, CEM, BEMP, LEED AP

Vice President

Michael Calabrese, PE, CEM, LEED AP

Treasurer

Tim Reinking

Secretary

Eric Feinschil

Senior Governor

Casey Younkins, PE

Governors

Dan Brown

Sean Hughes, PE

Mike Magee

Newsletter & Website Editor

James Piscopo, PE, LEED AP

Chapter Technology

Transfer Committee Chair

Judd Vail

Research Promotion Chair

Gary Debes

Basic School Coordinator

James Lill, PE

Refrigeration

Adam Ryan

Membership Promotion Chair

Kevin Clare

Student Activities Chair

Mike Magee

Program Committee Chair

Mike Radio

Chapter Historian

Sean Hughes

Young Engineers in ASHRAE

Dan Brown

Public Relations

Casey Younkins

Grassroot Government Activities

Edward Decker

Golf Outing Director

Tim Reinking

Honors and Awards Committee

Eric Feinschil

P r e s i d e n t ’ s M e s s a g e

Despite the hectic month of September, we had a great turnout at the September

ASHRAE meeting. We were fortunate to have John Fischer from Semco present of

Total Energy Wheels. The presentation was very interesting and talked about the

incredible energy savings that John Hopkins has seen since applying total energy

recovery wheels in their lab systems. In addition, the presentation discussed the

importance of using a high quality wheel that does not transfer contaminants from the

exhaust to the supply airstream.

As some of you may have seen on the Philadelphia Chapter’s website, October will

have two events. The first is the SMCA Engineer’s Night on October 5th at the

Downtown Club. Registration is free for design engineers and is due on September 20th

so sign up quickly if you are interested. The second event is the ASPE Product Show

and Technical Symposium on October 26th at the Clarion. This event will offer the

opportunity to gain 4 CEUs between 12:00 and 4:00 with eight different HVAC and

plumbing topics to choose from. The Product Show goes to 7:00pm. In addition, ASPE

will be giving out $2000 in door prizes throughout the night.

On November 14th, we will be hosting our event at the Radisson Hotel in King of

Prussia. The presentation will be on Integrated Project Delivery and will be presented by

E. Mitchell Swann. See our website for addition information.

Please tell us if you are willing to volunteer to help out with a committee or would like to

join the board. We look forward to seeing you at future events.

Jeff Crozier, PE, CEM, LEED AP

Philadelphia Chapter President

c021@ashrae.net

YEA Bowling Night

Thursday, November 9, 2017

South Bowl Lounge N’ Lanes

19 East Oregon Avenue

Philadelphia, PA 19148

Stay tuned for more details!

ASPE Philadelphia

Plumbing Trade Exhibition & Technical Symposium

Thursday, October 26, 2017

Earn CEUs!

See page 6 for more information!

ASHRAE Philadelphia Corporate Sponsorships Available

The Philadelphia Chapter invites your company to join as a Corporate Sponsor for the 2017-2018 year. Your

firm’s participation in this program would enable us to make a wonderful donation to ASHRAE Research Promotion

which includes over $ 1.5 million in local research funding.

Corporate Sponsors are listed on our web site, in our newsletter, and in our annual directory. They receive free copies

of our directory and recognition at all of our events. With the ease of one payment, you may get all this, as well as free

dinner tickets good for our monthly meetings, and make a valuable contribution to ASHRAE Research at the same

time.

Since not all companies have the same financial capabilities or quantity of employees, we offer a few different levels of

corporate sponsorship. Each level will receive the same types of benefits, with some differences in quantities and

discounting.

We hope you will decide to join us as a Corporate Sponsor. If you are interested, please email us at

philachapter@mail.ashrae.org. The Board of Governors thanks you for your continued support of ASHRAE. We hope

that this year is successful for your firm.

P a g e 3 Q u a k e r C i t y C l i m a t e O c t o b e r 2 0 1 7

The New 2017-2018 Directory is Available!

The latest edition of the Directory of Associations, Consulting Firms, and Manufacturers’ Representatives in the

Philadelphia Area is now available. It sells for $23 each.

Send your check to Hope Silverman, ASHRAE, 994 Old Eagle School Road, Suite 1019, Wayne, PA 19087. If you

prefer to pay by credit card, please call Hope at 610-971-2169 or email her at hope@mmco1.com.

ASHRAE 2018 Winter Conference

January 20 - 24, 2018

Chicago, IL

Save the date for the 2018 ASHRAE Winter Conference & AHR Expo in Chicago!

The Winter Conference will be held January 20-24, 2018 at the Palmer House Hilton.

The AHR Expo will take place at the McCormick Center, January 22-24, 2018.

The 2018 Expo will host more than 2,000 exhibitors and 65,000 industry professionals.

When you register for the ASHRAE Conference, your ASHRAE badge will give you access to the AHR Expo.

Registration opens September 1, 2017.

P a g e 4 O c t o b e r 2 0 1 7 Q u a k e r C i t y C l i m a t e

P h i l a d e l p h i a C h a p t e r P r o g r a m s C a l e n d a r 2 0 1 7 - 2 0 1 8

Program calendar is tentative and subject to change. Please refer to ASHRAE Philadelphia Website for up to date information.

Advance registration and pre-payment are required before the meetings.

We need your attendance!

If we are below our guaranteed level for attendees at our meetings, our treasury could be negatively effected.

Our programs are designed around the membership’s input and we all need to support these meetings to maintain

a strong/informed association. We hope to see you at our next meeting. Please come out and support our Chapter!

Date Location Topic Theme

10/5/2017 Downtown Club SMCA Engineer’s Night

11/9/2017 South Bowl Lounge N’ Lanes

YEA Bowling Night

11/16/2017 Radisson Valley Forge

Jedi Mind Tricks - IPD by E. Mitchell Swann Research Promotion

12/14/2017 The Union League The Future of Fighting Bacteria by Joe Callahan Annual Breakfast Meeting

1/25/2018 Wells Fargo Center Philadelphia Flyers vs. Tampa Bay Lightning Social

2/15/2018 TBD Fuel Cells Technology - IEEE/AEE By Geoff Slevin

March 2018 Fisher’s Tudor House

Trade Show

4/12/2018 TBD Impacts of Climate Change and Urbanization on Future Building Performance by Dr. Dru Crawley

Students and Membership

5/7/2018 TBD AIA - Passive House Past President’s Night

5/14/2018 DuPont Country Club

Annual Golf Outing

P a g e 5 O c t o b e r 2 0 1 7 Q u a k e r C i t y C l i m a t e

Please submit articles highlighting novel HVAC technologies to Chapter Technology Transfer Committee Chair

Judd Vail (c021cttc@ashrae.net) for consideration in future newsletters.

(click here to read the entire article)

Principals of Condensing Boiler System Design

By Dennis Jones, P.E., Member ASHRAE

ABSTRACT

Condensing boilers can provide significant energy savings due to operating efficiencies as high as 98% as compared to

a peak efficiency of 80% for a conventional boiler. However, specifying a condensing boiler does not guarantee

achieving anticipated savings; careful attention must be paid to the heating water system as a whole. The first principal

is that low boiler entering water temperatures (EWT) are required to realize the advertised efficiency and AFUE

performance of condensing boilers. ANSI Standard Z21.13 specifies condensing boiler performance testing with 80˚F

(27˚C) EWT and a 100˚F (55˚C) temperature rise (delta-T), a condition not generally achieved with standard design

practices. Advantages of high delta-T systems include reduced boiler and pump energy use and reduced pipe sizing and

distribution heat loss. A condensing boiler is not a compact fluorescent lamp (CFL); you can’t simply plug it into a typical

system and expect it to save energy. Selecting a condensing boiler is the easiest and least consequential part of

designing a condensing boiler system. This paper provides basic principles for designing a heating system utilizing

condensing boilers. The remaining design principals are mostly related to how to achieve a low EWT. The paper

presents design principles for heat delivery to the space, coil selection, boiler selection, low mass versus high mass

boilers, piping system design, pump and control valve selection, use of buffer tanks, and boiler controls. The paper

presents a detailed description of each design principal along with recommendations as to how to achieve it.

INTRODUCTION

Experience over several years of commissioning buildings with condensing boilers is that about 90% of the boilers never

operate in the condensing range. Traditional design practices include designing and controlling hydronic heating system

to not return water cooler than 140˚F (60˚C) in order to prevent condensation of corrosive flue gases within the boilers.

Conversely the focus for condensing boiler system design is to return 80˚F (27˚C) water to the boilers to promote

maximum boiler efficiency. Little information could be found on recommended design practices for condensing boiler

systems and in discussing design issues with commissioning agents, design engineers, and boiler factory

representatives; it was clear there was no consensus on how to design these systems. The ASHRAE Handbook was of

little help, but it did encourage design of high delta-T hydronic heating water systems. Internet searches failed to locate

any design guidelines focused on optimizing efficiency in condensing boiler systems. Condensing boilers can provide

significant energy savings due to operating efficiencies as high as 98% as compared to a peak efficiency of 80% for a

conventional boiler. However, installing condensing boiler alone does not guarantee achieving anticipated savings;

careful attention must be paid to the boiler heating water system as a whole. Condensing boilers require entering water

temperature (EWT) in the 100˚F (55˚C) range to actually condense water out of the exiting flue gas. The onset of

condensing is with an EWT of about 130˚F (54˚C), but maximum efficiency occurs at an EWT of 80˚F (27˚C) or lower.

This EWT requirement varies with altitude, with condensation starting at 125˚F (54˚C) EWT in Denver. The following

design principles were developed for condensing water systems.

DESIGN PRINCIPALS

Principal-1 - Return Water Temperatures to the Boilers must not Exceed 80˚F (27˚C) to Achieve the Advertised

Boiler Efficiency

ANSI Standard Z21.13 tests and rates condensing boiler performance with an 80˚F (27˚C) boiler entering water

temperature (EWT) and a 100˚F (55˚C) temperature rise (delta-T) to produce a boiler leaving water temperature (LWT)

of 180˚F (82˚C). Condensing boiler performance is dominated by the boiler EWT. Figure 1 below shows a typical

condensing boiler efficiency curve from a manufacture and a theoretical performance curve.

994 Old Eagle School Road

Suite 1019

Wayne, PA 19087-1866

P 610-971-2169

F 610-971-4859

The Philadelphia Chapter

of the

American Society of Heating,

Refrigerating and Air

Conditioning Engineers, Inc.

Republication of material

contained herein is expressly

forbidden without official Chapter

authorization. The Chapter does

not speak or act for the Society.

Any member with material to

submit for inclusion in the

Climate can send the information

to:

Hope Silverman

P 610-971-2169

hope@mmco1.com

Material can include letters to the

editor, member news, upcoming

events, comments on chapter

programs or issues, etc.

P a g e 7 O c t o b e r 2 0 1 7 Q u a k e r C i t y C l i m a t e

N e w P h i l a d e l p h i a C h a p t e r M e m b e r s

Visit

our web site at:

www.ashraephilly.org

Membership Advancement

If you are currently an ASHRAE Associate Member, becoming a full Member is easier

than you think! The following count toward the required 12 points to advance to full

membership status. You must update your ASHRAE online biography and send an

email to membership@ashrae.org to advance.

Non-accredited degree = 4 points

Accredited degree = 6 points

PE = 4 points

Industry experience = 1 point/year

New Affiliates:

Brandon Coyne

Harry Hinkle III

New Associates:

Adam Shelly

Mark Utain

Registration is now open for the

2017-2018

Basic HVAC Design Course.

See page 8 for more details!