Other inputs

Other inputs to the calculations is type of heat pump, type of operation of the heat pump, type of control of the heat pump, type of heating (floor heating or radiator heating), minimum source operating temperature, the effect of auxiliary equipment and backup electricity heater.  
Other possible energy sources can also be chosen, but this chapter only treats the heat pumps.  
Output from the calculations The model calculates the energy use and losses based upon constant fractions. The fraction of the energy use and the different losses is displayed by the model. A diagram shows the energy supply per temperature bin and how it is covered from different energy sources.  The seasonal energy efficiency, etas, is calculated.  
Etas = Lh/Qtot+cctrl where Qtot=Lh + Lsys + Qgen + Qel
etas is the net space heating demand of the house over the sum of the generated heat of the system. Qtot is the sum of the space heating demand (Lh), the losses from the heating system (Lsys), the primary energy losses of the energy input to the system (Qgen) and the energy needed by the auxiliary equipment such as control and heat sink pumps (Qel).

En kravspecifikation

En kravspecifikation för mätdata som behövs för att användas för validering har tagits fram. En sammanställning av befintliga standardliknande beräkningsmetoder (existerande algoritmer) för SPF har gjorts. Syftet med analysen har varit att beskriva existerande algoritmer (modeller) samt kartlägga om nuvarande program (Annex 28, SP´s beräkningsprogram mm) innefattar alla typer av värmepumpsystem som finns på marknaden idag. En viktig del är att undersöka hur kombinerad drift dvs. tappvarmvatten och värme behandlas i modellerna. En annan fråga är huruvida olika typer av kapacitetsreglering behandlas. Sammanställningen har visat att det finns en stor brist bland förekommande program och metoder vad gäller att ta hänsyn till : Kombisystem, såsom sol-vp Kapacitetsreglerade system System med kombinerad varmvattentillverkning och uppvärmning Existerande algoritmer har jämförts med resultat från fältmätningar. Från existerande fältmätningar har data tagits för att jämföra resultaten med befintliga metoder för att beräkna SPF. En analys av hur väl dessa metoder förmådde beräkna SPF för de studerade systemen har gjorts. Denna analys visar att resultaten från fältmätningarna ofta visar på högre SPF än vad som beräkningsmodellerna ger. Det finns flera orsaker till detta, bland annat att modellerna använder sig av konstant marktemperatur (som i förekommande fall är lägre än verklig marktemperatur), att modellerna använder en bivalent punkt som aldrig uppträtt i de verkliga mätningarna mm. Den gjorda jämförelsen visar på ett antal viktiga faktorer att studera vidare.

where the quantities

where the quantities G3  and G2  are the moisture content of the outside and inside air respectively.  Referring to a copy of a psychrometric chart or to Figure 3, locate point 2 representing the inside design conditions of 80F db and 50% relative humidity. From point 2, project a horizontal line to the right to the moister content scale and read and read G2 = .011 lb moisture per lb dry air.  Similarly locate point 3 for the outside conditions of 95 F db and 75F dew point.  From the chart obtain G3  = .019 lb moisture per lb dry air.  Then the latent heat from the infiltration is
                              q = 4840 (20) (.019 - .011) = 774 Btu/hr
Appliances such gas ovens, ranges, and dishwashers add to the latent heat load in a building.  These contributions are estimated from the data of Reference 2 as follows:
Dishwasher           q = 420 Btu/hr Gas oven               q = 1200 Btu/hr
© Gary D. Beckfeld  Page 10 of 21
Gas range              q = 5600 Btu/hr

Air sweep method

Air sweep method
A dust vacuum collecting device is connected to an opening in the duct.It is recommended thatthe insulated area of the ductfor cleaning has a minimum static pressure of 25 mm c.a., to ensure correct transport of the material for collection.Compressed air is introduced into the ductwith a hose.The vacuum head is introduced into the ductusing the nearestopening atthe beginning of the duct network Hoovering is started, following the airflow, sufficiently slowly to allow the vacuum cleaner to gather all the dirt.
Mechanical brush method
A hoovering device is connected to the mostextreme pointof the network. Toevacuate dirtand dustparticles suspended in the air,rotary brushes are used, with electric or pneumatic power. Dirt particles are dragged into the airflow direction inside the ductand are then collected by vacuum cleaner.
Brushing operations will usually require larger access openings than the previous method.Nevertheless,fewer openings are needed.Certain types of mechanical brushes can reach up to 7min both directions.

offers Limited Warranty

Adam Equipment offers Limited Warranty (Parts and Labour) for the components failed due to
defects in materials or workmanship. Warranty starts from the date of delivery.
During the warranty period, should any repairs be necessary, the purchaser must inform its
supplier or Adam Equipment Company. The company or its authorised Technician reserves the
right to repair or replace the components at any of its workshops depending on the severity of
the problems. However, any freight involved in sending the faulty units or parts to the service
centre should be borne by the purchaser.
The warranty will cease to operate if the equipment is not returned in the original packaging
and with correct documentation for a claim to be processed. All claims are at the sole discretion
of Adam Equipment

For the purposes

For the purposes of this Strategy Guideline, an energy efficient house is defined as one that is
designed and built for decreased energy use and improved comfort through higher levels of
insulation, more energy efficient windows, high efficiency space conditioning and water heating
equipment, energy efficient lighting and appliances, reduced air infiltration, and controlled
mechanical ventilation. Specification levels for energy efficient houses have historically been
prescribed by beyond code programs that set a percentage better than code for energy use, such
as ENERGY STAR®, which requires houses to be 15% more energy efficient than code. Beyond
code programs continue to set a percentage better than the improved codes for energy use,
raising the bar for whole house energy efficiency. The 2009 International Energy Conservation
Code (IECC) establishes an estimated 15% improvement in energy efficiency over the previous
2006 IECC requirements. Ongoing code cycles incrementally increase the minimum efficiency
of a house. For example, the 2012 IECC achieves approximately 30% savings over the 2006
version. As the new codes are adopted and implemented, a house that was built under an above
code program in 2010 will likely be the code mandated house in 2015. As the energy efficiency

Machinery space ventilation

Machinery space ventilation
E.5.1 The ventilation systems for machinery spaces of category A shall be separated from the ventilation
systems serving other spaces and shall be in general of the supply type. Other modes of operation
may be applied upon special approval.
E.5.2 Machinery spaces of category A shall be adequately ventilated so as to ensure that when machinery
or boilers therein are operating at full power in all weather conditions including heavy weather, an
adequate supply of air is maintained to the spaces for the safety and comfort of personnel and the operation
of the machinery. Any other machinery space shall be adequately ventilated appropriate for the purpose
of that machinery space.
E.5.3 In general, ventilators necessary to continuously supply the machinery space shall have
coamings of sufficient height to comply with LLC 1966 as amended 1988, Regulation 19(3), without having
to fit weathertight closing appliances (see also D.3.2). However, where due to ship size and arrangement
this is not practicable, lesser heights for machinery space coamings, fitted with weathertight closing
appliances in accordance with LLC 1966 as amended 1988, Regulation 19(4), may be permitted by the
Administration in combination with other suitable arrangements to ensure an uninterrupted, adequate
supply of ventilation to these spaces. The machinery spaces are those defined in SOLAS Regulation II-
1/Reg. 3.16.