Studying Geothermal Heat Pump in Palestine Port of Duqm and Dry Dock

Studying Geothermal Heat Pump in Palestine Port of Duqm and Dry Dock Overview 20 October 2010

Graduation Project Prepared By : Ahmad Khaled- Mohanad KhaleliaNedal Saleh Supervised By : Miss. Hala Hadad Port of Duqm and Dry Dock Overview 20 October 2010

Presentation Outline Site Analysis. Architectural Design. Structural Design. Geothermal system design. Cost Estimation Port of Duqm and Dry Dock Overview 20 October 2010

Project Information General Overview This Graduation Project Interested in designing Geothermal heating and cooling system for residential building, and compare with traditional HVAC system. Port of Duqm and Dry Dock Overview 20 October 2010

Site Analysis Site Location. Soil Analysis and topography. Climate. Temperature. Wind. Shadows. Port of Duqm and Dry Dock Overview 20 October 2010

Site Location Port of Duqm and Dry Dock Overview 20 October 2010

Soil Analysis and topography. Port of Duqm and Dry Dock Overview 20 October 2010

Temperature Port of Duqm and Dry Dock Overview 20 October 2010

Wind Port of Duqm and Dry Dock Overview 20 October 2010

Shadows Port of Duqm and Dry Dock Overview 20 October 2010

Architectural Design Site plan. Ground floor. Elevations. Sections. Environmental analysis. Sun path and shadows. Natural lighting. Insolation analysis. Port of Duqm and Dry Dock Overview 20 October 2010

Site Plan Port of Duqm and Dry Dock Overview 20 October 2010

Ground floor Port of Duqm and Dry Dock Overview 20 October 2010

South elevation Port of Duqm and Dry Dock Overview 20 October 2010

North elevation Port of Duqm and Dry Dock Overview 20 October 2010

East elevation Port of Duqm and Dry Dock Overview 20 October 2010

West elevation Port of Duqm and Dry Dock Overview 20 October 2010

Section A-A Port of Duqm and Dry Dock Overview 20 October 2010

Section B-B Port of Duqm and Dry Dock Overview 20 October 2010

Sun path and shadows Summer Port of Duqm and Dry Dock Overview 20 October 2010

Sun path and shadows Winter Port of Duqm and Dry Dock Overview 20 October 2010

Daylight level Port of Duqm and Dry Dock Overview 20 October 2010

Daylight factor Port of Duqm and Dry Dock Overview 20 October 2010

Insolation Analysis Port of Duqm and Dry Dock Overview 20 October 2010

Structural Design Design data . Slab design. Beam design. Column design. Footing design. Port of Duqm and Dry Dock Overview 20 October 2010

Design data Compressive strength of concrete (f'c): The compressive strength of concrete for beams, columns, slabs and footing was chosen as 280 Kg/cm2. Yielding strength of steel (Fy ): The yield strength of steel for flexure equal 4200 Kg/ cm2 and for shear reinforcement equal 4200 Kg/ cm2 . Unit weights of materials: Concrete 2500 Kg/ m3, Block 1000 Kg/ m3. Port of Duqm and Dry Dock Overview 20 October 2010 2

Slab design Compatibility check Port of Duqm and Dry Dock Overview 20 October 2010

Reinforcement Details Slabs are designed as one way ribbed slab with thickness 25cm Port of Duqm and Dry Dock Overview 20 October 2010

Beam Design حديد مكسوح Bottom reinforcement Upper reinforcement Beam# 3 ɸ16 7 ɸ14 4 ɸ12 4 حديد مكسوح Bottom Steal Upper Steel Beam# 3 ɸ14 6 ɸ14 4 ɸ12 1,5 3 ɸ16 7 ɸ16 4 ɸ12 2,3 3 ɸ12 3 ɸ12 3 ɸ12 6,8,9(secondary beams) 3 ɸ16 3 ɸ14 3 ɸ12 7 Port of Duqm and Dry Dock Overview 20 October 2010

Beam Design Port of Duqm and Dry Dock Overview 20 October 2010

Column design Port of Duqm and Dry Dock Overview 20 October 2010

Footing design Port of Duqm and Dry Dock Overview 20 October 2010

Geothermal system design. Introduction. Design step. Choose geothermal system type. Building load. Heat pump selection. Pipe size and length. Properties of trenches. Land required. Port of Duqm and Dry Dock Overview 20 October 2010

Introduction Port of Duqm and Dry Dock Overview 20 October 2010

Design step Port of Duqm and Dry Dock Overview 20 October 2010

Choose geothermal system type The determination of geothermal heat pump system for heating and cooling type depend on many factor: Site properties Geology Hydrology Land Availability Topography Building type Natural resource Port of Duqm and Dry Dock Overview 20 October 2010 So we choose the horizontal close loop

Building load Building properties Stone 0.07 2300 Concrete 0.1 2300 Polystyrene 0.02 46 Block 0.1 1040 Plaster 0.007 1250 Layer name Width Density Plaster 0.007 1250 Block 0.1 1040 Plaster 0.007 1250 IN S ID E Density O U T S ID E Width O U T S ID E Layer name IN S ID E External wall Internal wall Port of Duqm and Dry Dock Overview 20 October 2010

Celling Floor Layer name Width Density Layer name Width Density Concrete 0.25 2300 Soil 1.5 1300 Polystyrene 0.02 46 Concrete 0.15 2800 Concrete screed 0.005 2000 Ceramic tiles 0.01 1900 Air gap 0.05 1.3 Gipson board 0.007 1250 O U T S ID E IN S ID E IN S ID E O U T S ID E Port of Duqm and Dry Dock Overview 20 October 2010

Door Glass standard 0.006 2300 Air gap 0.03 1.3 Glass standard 0.006 2300 Layer name Width Density Wood pine 0.04 550 INSIDE Density OU T SIDE Width O U T S ID E Layer name IN S ID E Window Port of Duqm and Dry Dock Overview 20 October 2010

Weather data Weather data as we describe before. Port of Duqm and Dry Dock Overview 20 October 2010

Heating & Cooling Load Max Cooling: 15518 W Heating: 23576 W Max Port of Duqm and Dry Dock Overview 20 October 2010

Heat pump selection The selection of heat pump depend on: Geothermal system type Project system is used a closed horizontal system. Port of Duqm and Dry Dock Overview 20 October 2010

Assistant HVAC system Assistant HVAC system used is Fan coil with two pipe heating/cooling, single coil system. Port of Duqm and Dry Dock Overview 20 October 2010

Assistant HVAC system Assistant HVAC system used is Fan coil with two pipe heating/cooling, single coil system. Port of Duqm and Dry Dock Overview 20 October 2010

Building load Heating load is 23.576 KW, and the cooling load is 15.518 KW Pump properties The Assistant HVAC system used is Fan coil, so we choose water to water ground heat pump. Port of Duqm and Dry Dock Overview 20 October 2010

From this data the selected type of heat pump is RW Series: Commercial Reversible Chiller - 60 Hz (8-50 Tons). AHRI/ASHRAE/ISO 13256-2 Water-toWater Ratings Ground Loop Heat Pump Model Capaci ty Modul ation Source L/S 096 Cooling Full EST 25 C Part EST 20 C ELT 12 C Flow rate Load L/S Heating Full EST 0 C Part ELT 5 C ELT 40 C Capa city Watt s EER Capacit y Watts COP Full 1.5 1.5 29,89 4 5.0 24,61 9 3.1 Part 1.5 1.5 16,70 6 6.6 14,36 1 3,5 Port of Duqm and Dry Dock Overview 20 October 2010

Pipe length and size Pipe size The table below shown the pipe size and the maximum and minimum flow rate in Schedule 40 pipe for water Pipe size (in) Min Flow rate (gpm) Max Flow rate (gpm) 3/4 1 20 1 2 30 1 1/4 2 50 From heat pump the flow rate is 1.5 L/S which is equal 23.77 gpm, then the pipe size is 1 in. Port of Duqm and Dry Dock Overview 20 October 2010

Pipe length The not enough date about soil thermal resistance and ground temperature in Nablus city, we used method two to determine the pipe length. trench): For horizontal (Two pipes per L 44m/KW (155.5m/ton). Lc 683m Lh 1038m Because we used the same pipe for both heating and cooling we take the max. length that is 1038m. Port of Duqm and Dry Dock Overview 20 October 2010

Properties of trenches Number depth length width Area 17 2 31 0.7 21.7 Total 527 368.9 Port of Duqm and Dry Dock Overview 20 October 2010

Land required Port of Duqm and Dry Dock Overview 20 October 2010

Cost estimation Traditional HVAC System Cost Geothermal System Cost Port of Duqm and Dry Dock Overview 20 October 2010

Traditional HVAC System Cost Initial Cost The max. building load is 23.576 KW (7 ton), and the building has the 6 zones to heat and cool, So split unit used is: Room Number Capacity of split unit ( ton) Price ( ) Bedroom 3 1 1500 Office room 1 1 500 Living room 1 1.5 700 Guest room 1 1.5 700 Total 6 7 3400 Port of Duqm and Dry Dock Overview 20 October 2010

Running Cost The table below show the average properties of deferent type of split unit Capacity ( ton) Capacity (KW) Power (KWh) Heating Cooling 1 3.81 3.51 1.3 1.5 5.87 5.27 2 2 7.92 7.02 3.74 Port of Duqm and Dry Dock Overview 20 October 2010

Geothermal System Cost Initial cost The initial cost depend on Drilling Machine cost Labor installation cost Assistants fan coil unit Maintenance cost Running Cost The running cost depend on the performance and the capacity of heat pump Port of Duqm and Dry Dock Overview 20 October 2010

Summery System Initial cost ( ) Running cost ( ) Maintenance cost ( ) Total cost ( ) HVAC 3400 3709.5 285 7394.5 Geothermal 12354 2459.5 145 14958.5 Port of Duqm and Dry Dock Overview 20 October 2010

From this figure we can see that after 7 year, geothermal system cost is equal to HVAC system cost. So is considered as a good system in Palestine. because High initial cost of the geothermal system and low initial cost of the traditional system. low running cost of the geothermal system and high running cost of the traditional system. The running cost of the geothermal system is almost 20% less than the HVAC system The main disadvantage of this geothermal system is the high initial cost, on the other hand it consider as environmentally friendly. High maintenance cost of traditionalPortsystem, of Duqm and Dry Dock Overview and low maintenance cost of geothermal20 October 2010