PDF Publication Title:
Text from PDF Page: 227
7 Discussion and Analysis Following on from the work presented in Chapters 5 and 6, this chapter provides an overview and discussion of the most important findings from the experiments and the computer simulations for the integrated brine-to- water CO2 heat pump unit for space heating and hot water heating, the standard-sized cylindrical domestic hot water (DHW) tank and the movable insulating plate. The final part of the chapter presents a thermo- dynamic (exergy) analysis for the prototype CO2 heat pump system as well as an estimate of the seasonal performance factor (SPF) for two CO2 systems and a state-of-the-art residential brine-to-water heat pump system. 7.1 Main Findings from the Experi- ments and the Simulations 7.1.1 Introduction The integrated brine-to-water CO2 heat pump unit for combined space heating and hot water heating was tested in three different operating modes: ♦ Simultaneous space heating and hot water heating (combined mode) ♦ Hot water heating only (DHW mode) ♦ Space heating only (SH mode) Virtually all of the 80 tests were carried out at an evaporation temperature of -5oC, since this represents a typical temperature level for a ground- coupled heat pump operating in a cold climate. The heat pump unit gave off heat to a low-temperature floor heating system at 33/28, 35/30 or 40/35oC supply/return temperatures. In the combined mode and the DHW mode, the set-point for the DHW temperature was 60, 70 or 80oC. 7 – Discussion and Analysis 205PDF Image | Residential CO2 Heat Pump System for Combined
PDF Search Title:
Residential CO2 Heat Pump System for CombinedOriginal File Name Searched:
20559406.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |