Gas Heat Pump (GHP) Presented for Panasonic Heating & Cooling Systems by Lee Howes Consultant Sales Engineer lee.howes@eu.panasonic.com
Overview GHP Introduction Applications Features, benefits and advantages System design Case Studies Questions
GHP Introduction GHP = Gas (Engine Driven) Heat Pump Gas (Natural or Propane) is used as the primary method of power The refrigeration side is normal, as with an electric VRF system Only needs single phase supply Niche product
GHP Introduction 1981 GHP developed in Japan 1985 First GHP launched in Japan 1998 A capacity of 1 million Hp reached 2001 100,000 systems installed and 3 pipe system introduced 2003 A capacity of 2 million Hp reached and first R407c system sold in Europe 2004 First R410a systems introduced 2010 Sanyo taken over by Panasonic
GHP Introduction Exhaust Alternator (G Power only) 20Pa Fan Condenser Air Intake Radiator Engine Compr. WHE (2 Pipe only!) Refrig Conn Gas Supply 4-W Valve Accumulator Refrig Gas Engine (Nissan) Compressor (x2)
GHP Introduction ECO G 2-Pipe Standard 2-Pipe with reduced gas consumption and reduced electrical power consumption ECO G Multi Multi-system offering increased flexibility and combinations ECO G 3-Pipe 3-pipe Heat Recovery system with simultaneous heating & cooling
Applications Ideal for projects where power restrictions apply Where an alternative to installing/upgrading a substation is required Where building power loading needs to be reduced or freed up for other services Where only single phase supply is available Where continuous heating is critical
Applications GHP Projects VW Watford Audi Newcastle Audi Milton Keynes BMW Kings Lynn Kensington Academy Raines School Darland School Hawkedon Primary School Dudley College Evolve College of West Anglia East Berkshire College East Surrey Hospital General Dental Council Facebook London Hilton Bath City Hotel Magaro Hotel Hugo Boss Liverpool
Features, benefits & advantages Excellent Economy No defrost cycle through the use of engine waste heat therefore providing 100% heating even with outside air temperature as low as -20
Features, benefits & advantages Start Times Quicker heating operation time in comparison to electrical VRF through efficient recovery of heat from the engine cooling water
Features, benefits & advantages Hot Water Supply Function Free Hot water supply. Engine waste heat is recovered via the heat exchanger and used to heat hot water
Features, benefits & advantages Running Costs
Features, benefits & advantages Running Costs VRF running cost: 5367 GHP Total running cost: 4111 Savings per year: 1256 VRF CO 2 produced: 19206 Kg CO 2 GHP CO 2 produced: 17662.1Kg CO 2
Features, benefits & advantages Energy Saving Energy saved by the appropriate capacity. Achieved by load divider function. Allows Energy saving and lower running costs
Features, benefits & advantages Non-stop operation System will not stop during maintenance. Maintenance possible during weekdays Automatic backup operating function
Features, benefits & advantages Hydronic Applications Chilled and Hot water production Hot water outlet temperatures from 35 C to 55 C Chilled water outlet temperatures from -15 C to +15 C Outdoor temperature range in cooling mode: -10 C to +43 C Minimum outdoor temperature in heating mode -21 C 17
SYSTEM TYPES Hydronic Module Option Compatible with ECO G 2 pipe Cooling and Heating Cooling: 25-71 kw Heating: 30-80 kw Max. Op Limits: 7ºC and 55ºC Circ pump field supply AHU DX FCU C/W FCU 18
GHP UNIQUE FEATURES Power Consuption Vs Electric Heat Pump Approx. 1 / 15 Elements that consume electricity: Fans Water Pump (Engine) Starter Motor GHP EHP Spark plugs Electrical Consumption: 1 kw Electrical Consumption: 15.20 kw 20HP 20HP 19 19
System Design Plant Layout Condenser Positioning At least 2000 At least 600 Ref Conns Heat exchanger access At least 100 Front At least 1000 At least 350 Clearance for engine works 20
System Design Maintenance Requirements Engine Maintenance requirements are once every 10,000 running hrs (Interval Service) Assuming 12hrs X 5days X 52 weeks Equates to 3120 running hrs per year Engine will need to be maintained every 3.2 years Engine Lifetime 30000 Hours Options Replacement Engine, Recondition Engine on Site, New Condenser
System Design Scunthorpe General Hospital, UK R22 Chiller Replacement 7 no 2-pipe GHP Units with WHE providing 392kW of load. 18kW waste heat per system. Much lower start up current and existing power supply freed off 22
System Design Savills Real Estate, Dublin City Centre Office Refurbishment City centre location. Sub station at capacity. 3 pipe installation with 243kW load. Internal off coil temperature control. 23
System Design Capita Call Centre, Lingfield Point - Converted Factory 1940 s building. 11 GHPs serving 150 indoor units.. Intelligent touch screen control control. 24
System Design College of West Anglia Remote location. 18 GHPs serving 164 indoor units.. 1114kW cooling. 25
System Design Regione Lazio, Rome, Italy 90 no Outdoor Units, 5MW Cooling 1800 Indoor Units Largest GHP Project in Europe 26