Support for InfrastructureUSA.org
has been provided by these organizations and individuals:

John Hennessy III,
P.E.

Performance Study on Solar Assisted Heat Pump Water Heater Using CO2 in a Transcritical Cycle

Posted by Content Coordinator on Tuesday, February 7th, 2012

NORTH DAKOTA STATE UNIVERSITY GREEN COMPUTING AND COMMUNICATIONS LABORATORY

Abstract

This study reports the numerical analyses of a CO2 transcritical cycle on solar assisted heat pump water heating system in which evacuated tube U-pipe solar collector is utilized as an evaporator. This simulation model can predict operating characteristics for moderate meteorological conditions of North Dakota. The main purpose of this work is to simulate the overall performance of the heat pump cycle by varying compressor speed. From the analysis the coefficient of performance (COP) value is predicted from 1.5 – 2.8 with three different average solar insolation. The results showed that the performance of the system significantly influenced by the compressor speed and solar irradiation. This study also calculated the instantaneous collector efficiency and found in the range of 50 – 55%.

Download Full Study (PDF): Performance Study on Solar Assisted Heat Pump Water Heater Using CO2 in a Transcritical Cycle

About The North Dakota State University Green Computing and Communications Laboratory

http://gcclab.org/

“The NDSU-CIIT Green Computing and Communications Laboratory (GCC Lab) is an initiative to bring together the faculty, staff, and students of the North Dakota State University and COMSATS Institute of Information Technology to conduct research on making computing and communications, energy-efficient. “

Tags: , , ,

Comments are closed.

Receive Infra Update, our email newsletter.

Follow InfraUSA on Twitter Facebook YouTube Flickr

CATEGORIES


Show us your infra! Show us your infra!

Video, stills and tales. Share images of the Infra in your community that demands attention. Post your ideas about national Infra issues. Go ahead. Show Us Your Infra!  Upload and instantly share your message.

Polls Polls

Is the administration moving fast enough on Infra issues? Are Americans prepared to pay more taxes for repairs? Should job creation be the guiding determination? Vote now!

Views

What do the experts think? This is where the nation's public policy organizations, trade associations and think tanks weigh in with analysis on Infra issues. Tell them what you think.  Ask questions.  Share a different view.

Blog

The Infra Blog offers cutting edge perspective on a broad spectrum of Infra topics. Frequent updates and provocative posts highlight hot button topics -- essential ingredients of a national Infra dialogue.