ASHRAE Journal - September 2021 - 55

FIRST PLACE | 2021 ASHRAE TECHNOLOGY AWARD CASE STUDIES
FIGURE 3 Heat recovery chiller with self-consumption cycle.
Hot Water
2.0
Cooling
Tower
Heat Recovery
Chiller
Chilled Water
Cooling
COP
Heating
COP
Heat Exchanger For
Self-Consumption
4.5
2.5
5.5
1
2.5
3.0
1
Heat Recovery
Chiller
Self-Consumption
2.7
1
Air-Source Heat
Pump
solar hot water system for the hotel guest rooms and
kitchen were also adopted. The temperature of the well
water is more stable than outdoor air throughout the
year. The quantity of available well water in Kyoto is suffi
cient for this use.
The Kyoto Station complex operates 24 hours per
day. The central plant is constantly running to keep the
air conditioning on. In starting the renovation work,
actual energy consumption data for the past fi ve years
were analyzed to accurately predict the necessary and
suffi cient chilled water load for every fi ve days for the
replacement time period. The layout of the chillers and
various machines were carefully designed based on the
cooling load for every fi ve days. The design team kept
in mind that, at any time, the chilled water capacity of
the central plant, excluding one backup chiller, must
remain more than the cooling load. All of the central
plant equipment was successfully replaced over eight
months, including a one-month preparation, while
maintaining 24-hour-per-day operations.
By reducing the central plant size, the equipment
removal and replacement process became smooth and
effi cient. New chillers and cooling towers were installed
at the original locations, and new air-source heat pumps
were placed in a vacant area left by the old cooling towers.
Operation and Maintenance
On a typical project, the owner's intent is carried down
from the owner to the designer and from the designer to
the constructor. There is a limited amount of interactive
Desiccant and Energy Recovery wheels
available in standard and custom sizes.
Call or email us for a quote today!
info@rotorsource.com | www.rotorsource.com
225 -753 1700
225 -753 -1
S E P T E M B E R 2 0 2 1 ashrae.o rg ASHRAE JOURNAL
55

http://www.rotorsource.com http://www.shortridge.com http://ashrae.org

ASHRAE Journal - September 2021

Table of Contents for the Digital Edition of ASHRAE Journal - September 2021

Contents
ASHRAE Journal - September 2021 - Intro
ASHRAE Journal - September 2021 - Cover1
ASHRAE Journal - September 2021 - Cover2
ASHRAE Journal - September 2021 - 1
ASHRAE Journal - September 2021 - Contents
ASHRAE Journal - September 2021 - 3
ASHRAE Journal - September 2021 - 4
ASHRAE Journal - September 2021 - 5
ASHRAE Journal - September 2021 - 6
ASHRAE Journal - September 2021 - 7
ASHRAE Journal - September 2021 - 8
ASHRAE Journal - September 2021 - 9
ASHRAE Journal - September 2021 - 10
ASHRAE Journal - September 2021 - 11
ASHRAE Journal - September 2021 - 12
ASHRAE Journal - September 2021 - 13
ASHRAE Journal - September 2021 - 14
ASHRAE Journal - September 2021 - 15
ASHRAE Journal - September 2021 - 16
ASHRAE Journal - September 2021 - 17
ASHRAE Journal - September 2021 - 18
ASHRAE Journal - September 2021 - 19
ASHRAE Journal - September 2021 - 20
ASHRAE Journal - September 2021 - 21
ASHRAE Journal - September 2021 - 22
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ASHRAE Journal - September 2021 - 24
ASHRAE Journal - September 2021 - 25
ASHRAE Journal - September 2021 - 26
ASHRAE Journal - September 2021 - 27
ASHRAE Journal - September 2021 - 28
ASHRAE Journal - September 2021 - 29
ASHRAE Journal - September 2021 - 30
ASHRAE Journal - September 2021 - 31
ASHRAE Journal - September 2021 - 32
ASHRAE Journal - September 2021 - 33
ASHRAE Journal - September 2021 - 34
ASHRAE Journal - September 2021 - 35
ASHRAE Journal - September 2021 - 36
ASHRAE Journal - September 2021 - 37
ASHRAE Journal - September 2021 - 38
ASHRAE Journal - September 2021 - 39
ASHRAE Journal - September 2021 - 40
ASHRAE Journal - September 2021 - 41
ASHRAE Journal - September 2021 - 42
ASHRAE Journal - September 2021 - 43
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ASHRAE Journal - September 2021 - 45
ASHRAE Journal - September 2021 - 46
ASHRAE Journal - September 2021 - 47
ASHRAE Journal - September 2021 - 48
ASHRAE Journal - September 2021 - 49
ASHRAE Journal - September 2021 - 50
ASHRAE Journal - September 2021 - 51
ASHRAE Journal - September 2021 - 52
ASHRAE Journal - September 2021 - 53
ASHRAE Journal - September 2021 - 54
ASHRAE Journal - September 2021 - 55
ASHRAE Journal - September 2021 - 56
ASHRAE Journal - September 2021 - 57
ASHRAE Journal - September 2021 - 58
ASHRAE Journal - September 2021 - 59
ASHRAE Journal - September 2021 - 60
ASHRAE Journal - September 2021 - 61
ASHRAE Journal - September 2021 - 62
ASHRAE Journal - September 2021 - 63
ASHRAE Journal - September 2021 - 64
ASHRAE Journal - September 2021 - 65
ASHRAE Journal - September 2021 - 66
ASHRAE Journal - September 2021 - 67
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ASHRAE Journal - September 2021 - 69
ASHRAE Journal - September 2021 - 70
ASHRAE Journal - September 2021 - 71
ASHRAE Journal - September 2021 - 72
ASHRAE Journal - September 2021 - 73
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ASHRAE Journal - September 2021 - 76
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ASHRAE Journal - September 2021 - 79
ASHRAE Journal - September 2021 - 80
ASHRAE Journal - September 2021 - Cover3
ASHRAE Journal - September 2021 - Cover4
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