Transcript Japan National Team Leader

Annex39
Japan National Team Report
Annex39 Expert Meeting, 12 Nov 2013
at Waseda Univ. Tokyo
Kiyoshi Saito
Japan National team leader
Waseda Univ.
Japan National Team
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Japan National Team Leader: Prof. Kiyoshi Saito, Waseda University
Annex39 scheduled Working period：Sep 2011～Aug 2014
Members of Japan National Team
Dr. Hisashi Miura, National Institute for Land and Infrastructure Management
Dr. Masato Miyata, Building Research Institute
Prof. Masafumi Hirota, Mie University
Dr. Katsumi Hashimoto, Central Research Institute of Electric Power Industry
Dr. Yohei Kayukawa, National Institute of Advanced Industrial Science and
Technology
Mr. Kenji Matsuda, The Japan Refrigeration and Air Conditioning Industry
Association
Mr. Masahide Shima, The New Energy and Industrial Technology Development
Organization
Mr. Takeshi Hikawa, Heat Pump & Thermal Storage Technology Center of Japan
Representatives from 8 corporations: Mitsubishi electric, Toshiba career, Panasonic,
Daikin Industries, Kansai electric power company, Chubu electric power company,
Mitsubishi heavy industries, Hitachi.
International Expert Meeting History
• Oct 2011
Nurnberg
• Jan 2012
Chicago : National team activity reports
• Oct 2012 Nurnberg : Activity reports of TASK1, TASK2
（Existing specification)
• May 2013 Brussels : Discussion of each countries
activities
• Nov 2013 Tokyo
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National Team Meeting History
<1st board meeting on 6 Jun 2012>
1. Outline of ANNEX39
2. Discuss what Tasks to contribute to
<1st National team meeting on 3 Aug 2012>
1. Outline of ANNEX39
2. Comparison Japan’s standards and Europe’s by Mr. Sagawa, JRAIA
3. What to do for finalizing Task 1 & Task 2 toward end of Sep.
<2nd National team meeting on 24 Aug 2012>
1.Presentation about EN14825, ISO standards by Mr. Kataoka, JRAIA.
2.Status report of TASK1,2 country report
<3rd National team meeting on 20 Sep 2012>
1. About contents of Task1, 2
2. Outline of Japan Air Conditioning and Refrigeration Testing
Laboratory (JATL) by Mr. Hirata, JATL
3. What to contribute to Task3 &4
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National Team Meeting History
<4th National team meeting on 5 Dec 2012>
1. Report from the Annex39 Expert meeting at CHILLVENTA by Prof.
Saito
2. Presentation: Current building load pattern in Japan by Dr. Miura,
National Institute or Land and Infrastructure Management
3. Presentation: EU standards by Associate prof. Kametani, Tokyo
university of marine science and technology
4. Presentation: How to analyze uncertainty by Dr. Kayukawa, National
Institute of Advanced Industrial Science and Technology
5. Presentations from the JSRAE annual conference, new performance
evaluation method of air- conditioner & water heater by Prof. Hirota &
Dr. Fujinawa
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National Team Meeting History
<5th National team meeting on 6 Mar 2013>
1. Presentation: Activity about the ISO16358（standardization of testing
method of air conditioner) by Mr. Kaibara, Panasonic
2. Presentation: Current & future technology of Air Conditioning and
Refrigeration Testing facility by Mr. Ishibasi, Onishi Netsugaku
3. Presentation: LCEM tool and its simulation by Associate Prof. Yoon,
Nagoya city university.
<6th National team meeting on 17 Jun 2013>
1. Report from international expert meeting by Prof. Saito
2. Presentation: Eco Cute standard; JIS C9220 by Mr. Nishida, Daikin
Industries
3. Presentation: Performance simulation of air conditioner by Prof. Saito
4. What to contribute to Task3,4
<2nd Board meeting on 6 Jun 2013>
1. Performance evaluation method of A/W heat pump for heating
2. What to contribute to Task3,4
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Performance test method for Eco Cute(JIS C9220)
Performance test for Eco Cute(A/W heat pump water heater) is conducted under whole system setup
combination of heat pump unit and storage tank unit .
• Energy efficiency of heat pump unit is measured under 6 conditions in the table.
• Hot water demand is determined by daily hot water use pattern –mode- at average Japanese home use.
Annual performance efficiency is determined by the value of total amount of heat used in a year divided by
total amount of electricity usage.
summer
Outside
temp
(Dry/Wet)
Supply
Water
temperature
Spring &
Autumn
Winter
Normal
Stand by
High temp water
supply
Winter(Fro
st mode)
25/21
16/12
7/6
7/6
7/6
2/1
24
17
9
9
9
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• Test method includes influence of whole system factors such as storage tank unit
thermal insulation performance , scheduling program effect and transient performance
influence on the whole system performance.
• This test method is well considered effective one to carry out precise evaluation. But
since domestic hot water demand is deeply affected by Japan’s unique life style, It
would be difficult to extend this test method to other countries.
Types of major heat pump for heating , domestic hot water supply,
& multi purpose heat pump, multi heat source heat pump In Japan
Type of heat pump
Test method
Hitachi
appliance
Supply domestic
hot water & Floor
heating
Annual performance efficiency is determined total amount of heat used in a year divided by
total amount of electricity usage. The test method is based on JIS9220
Panasonic
Supply domestic
hot water & Floor
heating
Heat pump performance is evaluated under below specific conditions determined by
JRA4050
outside temp16℃/ 12℃, Inlet water temp17℃ at middle season
outside temp25℃/ 21℃, Inlet water temp 24℃ at summer season
outside temp7℃/ 6℃, Inlet water temp 9℃ at winter season
Toshiba
Hot water heating
Rated Performance value is evaluated at specific condition. Specific condition is below,
Outside temperature:7℃,Supply hot water temperature:40℃, Flow rate:4L/min
Mitsubishi
Electrics
Hot water heating
Rated Performance value is evaluated at specific condition. Specific condition is below,
Outside temperature:7℃,Supply hot water temperature:40℃, Flow rate:4L/min
Daikin
Floor heating
Performance value is tested at Company’s original specific condition. Specific condition is
below,
Indoor temp20℃,outside temp7℃/ 6℃, supply hot water temp35℃, Inlet water temp30℃,
Flow rate4.8L/min
Yazaki
Heat pump with
Solar thermal
collector
Annual performance efficiency is determined by total amount of heat used in a year divided
by total amount of electricity usage. Total amount of heat is calculated sum of heat produced
by heat pump under the condition of JRA4050 and heat produced at solar thermal panel
counting meteorology data.
Rinnai
Heat pump with
gas fired water
heater
Only heat pump performance is evaluated. Specific conditions are below,
Hot water supply temp is 45℃ in every season,
outside temp16℃/ 12℃, Inlet water temp17℃ at middle season
outside temp25℃/ 21℃, Inlet water temp 24℃ at summer season
outside temp7℃/ 6℃, Inlet water temp 9℃ at winter season
Notes
Besides air conditioning system and EcoCute, no standard exists in hybrid heat pump system in Japan. The
increase of hybrid heat pump using RES would be possible near future.
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Trends in overseas 1
SEAD: Super-efficient Equipment and Appliance Deployment
 Survey & evaluate of existing calculation methods for heat pump water heaters in US , EU, Canada,
Australia, Korea and China for ISO standardization, led by KTL and ICA.
 Completed survey & evaluation of existing calculation methods for heat pump water heaters in
targeted countries/regions.
 Completed measurements using 3 testing facilities done by each method.
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Trends in overseas 2
ASHRAE: Calculation methods for multi-function heat pumps
Method of testing for rating of multipurpose heat pumps for residential space conditioning and water
heating has established in the U.S. This standard provides uniform calculation procedures , ambient &
water temperatures and water draw schedule. This is standardized as ASHRAE206-2013
I think we have to refer this method for
unified SPF
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Strategy for development of new SPF
Basic concept is as follows to unify heat pump evaluation method.
• Separate simple heat pump unit and environment –boundary is shown in figure
• Develop method to evaluate simple heat pump unit. Evaluation method of heat pump unit is
referred to APF.
• Evaluate whole heat pump system performance including additional facilities in another way.
Concept of heat pump evaluation
INPUT
Sink: Temp. , kind of Trans.Medi.
Source : Temp. kind of Trans.Medi.
Load pattern
Others : Some heats
OUTPUT
Annual Energy consumption
• Electricity
• or Fossil fuel use
• or CO2 emission
Boundary
Transport
medium
Environment
Strategy for development of new SPF
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• Objective heat pump unit : Air-conditioner, Heat pump water heater, some hybrid systems
• Select transportation medium : Air to air, Air to water, Water to water
Power
消費電力
consumption
COP
COP
How to organize performance of heat pump?
Organize performance as function of heat
source temp., heat sink temp. and load pattern.
Just now APF onlys consider ambient air temp.
dependence.
How much data should we take?
Since we can’t take too much data, we have to
consider how much data should we take.
Load
負荷
定格能力
Rated
Middle
中間能力
15
20
25
c
30
b
35
40
a
How to get annual performance?
we can’t take every annual performance data. We
have to consider how to estimate some
performance whose actual data we can’t get.
外気温度　℃
Ambient
temp.
Fig. Performance evaluation method of APF
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Strategy for development of new SPF
When followings are given, depending on driving condition or country, we can decide SPF
Load pattern, annual temp. change of heat source and sink, additional heat or power
quantity-renewable energy, waste heat
800
10
600
400
200
0
10
Annual Load pattern
15
5
Irradiation
Outside temperature
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12
13
Time h
14
15
Outside temperature oC
Irradiation W/m2
1000
0
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Renewable energy condition
This can be determined by
climate and size & performance
of element
Waste heat should be determined
by user data
But anyway, we can decide the annual performance of heat pump just like,
SP F 
 load
 P ow er ( or C O 2 em ission , or
fossil energy consum pti on)
Strategy for development of new SPF
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Simulation : We try to use both of physical model considered code and whole system calc. code.
• Simulation that consider detailed physical model should be used to estimate annual
performance of heat pump unit.
• Simulation that can calculate large scale system just like LCEM I introduced you last time is
used to evaluate whole heat pump system including renewable energy, Waste heat ….
Fig. Physical model considered simulation code
Fig. Large scale system calculation code
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Strategy for development of new SPF
Validation
• High precision data acquired from such as assessment center is needed to validate heat
pump unit.
• Field test data is needed to evaluate whole annual performance including renewable energy
and waste heat.
Fig. Data acquisition
Fig. Filed test data
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TASKS UNTIL NEXT MEETING
Future Task
• We will investigate evaluation method of hybrid systems
• We try to suggest how to evaluate heat pump unit depending on
heat source temp., sink temp and load pattern.
• In this case, detailed simulation will be used.
• We will evaluate whole system performance with simulation.
• We investigate whether we can use data we have already gotten to
evaluate not only heat pump unit but also whole system
performance. It is difficult to get new data.
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