TIP No. 22 : BEWARE IN SELECTION OF HEAT PUMP DIMENSIONS ……. YOU NEED A COAXIAL CONDENSER AS THE ONLY RETROFIT DESIGN SUITABLE FOR “SELF-FUNDING” DURABILITY & RESILIENCE ……..
When moving parts CAN break-down; they WILL break-down…sooner or later. When correctly designed this must NEVER require a “Return to Factory”. The “Lowest Life Cycle Cost (LCC)” involves a monobloc ASHP (water-cooled chiller life-span normally at 20-30 years & HMRC NAV amortization @ <6years) to be designed with a larger “footprint” for an overall larger “Enclosure volume” than a standard “compact”designed, residential H.P:..............
TIP No. 21 : Can you share a better definition ??
We define a Commercial Building Retrofit “HOLISTIC HEAT PUMP SYSTEM” Design for:
Heritage Properties; Nursing & Elderly Homes as a continuous “SELF-FUNDING DEVICE” by its high SCOP (>8-10) of continuous energy savings & operating run-time (>20years):..............
TIP No. 17 : BASELINE METRICS & REMOTE ISLANDS
Fundamental to the financial Analysis for every stakeholder Retrofit, is the input of accurate Baseline metrics. From this input, we complete regression analysis on many previous years of multiple variables for weather, Facility energy consumption & property usage/occupation. This constructs a conservative, future-proof predictive model..............
TIP NO. 16: EXPERTISE FROM GLOBAL REMOTE ISLANDS
Our early years of R&D, across the Japanese islands of 1970’s, evolved our engineering expertise for an absolutely secure anchoring technique (on both rooftops & now solar Façade-curtain walls) of Ren.Energy .devices onto variable exterior building envelopes. This demanded resilience to the highest cyclonic wind loading and also for Historic & Heritage structures in an earthquake zone.
TIP No. 15: ON-SITE “REDUNDANCY” A NECESSITY
Remote locations with no nearby technicians on-hand for URGENT Servicing upon “equipment outage”, must have “ON-SITE REDUNDANCY”. This means extended kWh “Stand-by Storage” for both Hydronic & Electric resources: multiple hot water buffer tanks and electrical battery storage...............
TIP No. 14: RESILIENCE FOR SERVICEABILITY & FUTURE PROOFING
For a long-term Client relationship of Trust, we always defer to the Client’s choice of H.P. equipment with their Vendor’s supply of Brand & Model as well as their chosen Contractor. Our counselling is limited to a “most preferred” site location for the H.P. installation with a one+ meter all surround Service Space. ..............
TIP No. 13: UPCYCLE FOR GOOD PRACTICE
Subject to Appraisal & Validation of item performance and durability it is “Good Practice” to upcycle within the renewable energy engineering design, , as many as possible HVAC & MEP on-site existing fittings & equipment (eg. Calorifiers & Pumps etc.) even if relocating ex the plant room to a new location (as a tangible “Value-adding” benefit to the Owner or Architect for alternative floorspace usage) …................
Tip No. 12 Rigging and Building Access
From the start, for a Retrofit site, prioritise an existing Building’s easiest passage-ways, door-widths & elevator dimensions (including elevator & floor static load limits)
This will define the LOWEST COST OPTIONS for Rigging & Access to all possible H.P. & Auxiliary equipment sizing from a 60th Level rooftop footprint or to a B3 Basement or
any in-between Plant room...............
Tip No. 11: ITERATIONS TO >SYSTEM EFFICIENCY
For highest COP Performance, always source Max. Enthalpy inlet air into the ASHP by direct ducting from a Building’s interior “HOT SPOTS” A Clients Financial PBP Mandate <60months is SUPREME *But as per Design spec.: sustain each zone as positive air
pressure for zero uncontrolled F/A infiltration .........
TIP No. 20: PROHIBITIONS REMAIN IN PLACE TO PREVENT RESIDENTIAL CATEGORIES OF HEAT PUMP ……
Prohibitions remain in place to prevent residential categories of Heat Pump from being used to retrofit Decarb. designs on Commercial Building Heritage sites. A residential Heat Pump has never yet been manufactured with the required componentry specifications nor the interior component configuration to be integrated within a “Holistic System” to meet a Conservation design. ...........................
TIP No. 19 HISTORIC SITE RETROFIT DESIGN “VALUE-ADDING” BY >3+ BUFFER TANKS PER ZONE ……
For every Commercial Building Retrofit Design that is ‘Green’ & Holistic, the greatest opportunity for Value Investment is the selection & location of concealed multiple Buffer Tanks (Thermal Energy Storage). This TES allows the Design for a “decarbonised” stable IAQ Dry Climate Control at 1-2xACH-Ventilation (24/365) with highest efficiency at lowest operating & maintenance costs. Only, as a second priority, is due diligence for engineering MEP plus innovative interior design (concealed air ducts & latent radiant panels) as important. ...........................
TIP No. 18 : ASSISTANCE PLEASE, TO SOURCE PROVEN EMPIRICAL DATA & CLEANING PROTOCOLS FOR SEABIRD GUANO AT HIGH NORTHERN UK (54Deg.N) LATITUDE??.…..R.S.V.P.
There is a problem to begin the verification for this high performance, Commercial Building Retrofit Design (cf. Footnote 1) at a UNESCO HISTORIC site. The Design features a rapid ROI by a Hybrid Heat Pump Cascade & Solar Array ...........................
TIP No. 7: INSUFFICIENT “PREQUALIFIED PROSPECTS”
It happens, by multiple reasons, that the time comes in every “Territory” when a Consultancy experiences a severe “LULL” in “Prequalified Prospects”. This is the time when a Consultancy must extend well beyond & outside its existing Base. It incurs extra cost & much extra due diligence to avoid “Murphy’s Law”. To achieve new projects with well satisfied Clients, the proven Strategy in Renewable Energy is to replicate a “cookie cutter template” of your most successful past project Design and “target” this to similar Owner/Operator end-users (e.g. Hotels & Resorts) whilst island hopping around the globe ........................
TIP No. 6: SHUT-DOWN F.F. EQUIPMENT & DISPOSAL
In the early years, it was often customary for the Client (operating end-user) to prefer to exclude the removal/disposal (of the shut-down & by-passed plant room
equipment) from a renewable energy Retrofit contract . It was by reason of a “Trust Deficit” in all new Clean-Tech Systems.
The Client usually insisted to retain the existing (by-passed) F.F. Equipment as “stand-by” on-site...........................
TIP No. 5: PREQUALIFYING A PROSPECTIVE CLIENT
When anticipating a Commercial Building Retrofit Design, a facility site-visit & walk-through can lose you half a DAY....+ plus. Don’t do it YET!!
Prior to expending Consultancy Time for a Building Survey & Review of Site Energy Data, a careful prequalifying Client Check-List is necessary for a speed “filter-out” of non-starter prospects..............
The Heat Pump Academy
Courtesy of
Umsong Renewable Energy Laboratories.
OUR DESIGN “WORKHORSE”
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