Quality Assurance of Flexible Plastic Pipes for Hot-Water Service

2008 ◽  
pp. 118-118-17
Author(s):  
J Skarelius
Keyword(s):  
Quality Assurance ◽  
Hot Water ◽  
Water Service ◽  
Plastic Pipes

scholarly journals Improvement in Durability of Plastic Pipes with Polysilane for Hot Water

Seikei-Kakou ◽  
2015 ◽  
Vol 27 (10) ◽  
pp. 426-428
Author(s):  
Sakiko Fukunishi ◽  
Kazufumi Kohno ◽  
Yuji Higuchi ◽  
Masayuki Sugimoto ◽  
Masahiro Yamada ◽  
...  
Keyword(s):  
Hot Water ◽  
Plastic Pipes

scholarly journals Measurement and Verification of Integrated Ground Source Heat Pumps on a Shared Ground Loop

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1752 ◽  
Author(s):  
Jeong Soo Shin ◽  
Jong Woo Park ◽  
Sean Hay Kim
Keyword(s):  
Heat Pump ◽  
Air Conditioning ◽  
Heat Pumps ◽  
Hot Water ◽  
Geothermal System ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Ground Source Heat Pumps ◽  
Water Service ◽  
Ground Source

We propose an integrated geothermal system that consists of air-conditioning and hot water service ground source heat pumps, both of which share a ground water loop. The proposed system increases the COP of the service hot water ground source heat pump by recovering the condensation heat of the air-conditioning ground source heat pump as an evaporator heat source for the hot water service ground source heat pump. Eventually this integration expands the scope and capacity of the evaporator source in addition to the underground water of heat exchangers, which also leads to increase the COP of the air-conditioning ground source heat pump. The integrated geothermal heat pump system was installed in a hotel, and then data were measured for a limited period due to the hotel’s ongoing business activities. A TRNSYS simulation model has been developed as a baseline, and the baseline has been calibrated with the measured data. By running one-year simulations, it turns out that the annual electricity use for heating and cooling, and service hot water was reduced by 19.1% in the cooling season, and by 9.6% in the heating season, with respect to the conventional configuration in which the air-conditioning heat pump and hot water service heat pump work individually on their own ground loops.

Hot water service using high-efficiency gas-fired appliances†

1992 ◽  
Vol 13 (3) ◽  
pp. 147-153 ◽  
Author(s):  
N.G. Moore ◽  
N.M. Gibson ◽  
G.F. Wright
Keyword(s):  
High Efficiency ◽  
Hot Water ◽  
Water Service
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