class SimulatedHeatStorageTests(unittest.TestCase):
def setUp(self):
self.env = BaseEnvironment()
self.hs = SimulatedHeatStorage(0, env=self.env)
def test_heat_storage_creation(self):
self.assertGreater(self.hs.config["capacity"], 0)
self.assertGreater(self.hs.base_temperature, 0)
self.assertGreater(self.hs.config["min_temperature"], 0)
self.assertGreater(self.hs.config["target_temperature"], self.hs.config["min_temperature"])
self.assertGreater(self.hs.config["critical_temperature"], self.hs.config["target_temperature"])
self.assertGreater(self.hs.specific_heat_capacity, 0)
self.assertEqual(self.hs.input_energy, 0)
self.assertEqual(self.hs.output_energy, 0)
self.assertEqual(self.hs.empty_count, 0)
self.assertGreater(self.hs.temperature_loss, 0)
def test_energy_stored(self):
self.hs.input_energy = 2
self.hs.output_energy = 1
self.assertEqual(self.hs.energy_stored(), 2 - 1)
def test_get_required_energy(self):
# target_energy should return the energy needed to fill the storage to
# its target-temperature
self.hs.input_energy = 9
self.hs.output_energy = 1
stored_energy = 9 - 1
# get energy needed to get the energy needed to reach the
# target_temperature from zero
self.hs.base_temperature = 0
self.hs.config["target_temperature"] = 70
self.hs.specific_heat_capacity = 0.002
self.hs.config["capacity"] = 2500
target_energy = 0.002 * 70 * 2500
# get energy needed to fill storage from the stored energy to its target
# temperature
required_energy = target_energy - stored_energy
self.assertAlmostEqual(required_energy, self.hs.get_required_energy())
def test_add_energy(self):
self.hs.input_energy = 0
for i in range(20):
self.hs.add_energy(0.5)
self.assertEqual(self.hs.input_energy, 20 * 0.5)
def test_consume_energy(self):
self.hs.input_energy = 2
self.hs.output_energy = 0
self.hs.consume_energy(2)
self.assertEqual(self.hs.output_energy, 2)
def test_consume_too_much_energy(self):
self.hs.empty_count = 0
self.hs.input_energy = 1
self.hs.consume_energy(2)
self.assertEqual(self.hs.empty_count, 1)
self.assertEqual(self.hs.output_energy, 1)
def test_get_temperatur(self):
base_temperature = 1
self.hs.base_temperature = base_temperature
self.hs.input_energy = 1
self.hs.ouput_energy = 0
energy_stored = 1
self.hs.config["capacity"] = 2500
self.hs.specific_heat_capacity = 0.002
# temperature = energy/capacity
added_temperature = energy_stored / (2500 * 0.002)
temperature = 1 + added_temperature
self.assertEqual(temperature, self.hs.get_temperature())
def test_get_energy_capacity(self):
# max energy the storage can hold:
# energy = capacity*TemperatureDiff
max_temperature_diff = self.hs.config["critical_temperature"] - self.hs.base_temperature
max_energy = self.hs.specific_heat_capacity * self.hs.config["capacity"] * max_temperature_diff
self.assertEqual(max_energy, self.hs.get_energy_capacity())
def test_undersupplied(self):
self.hs.base_temperature = 0
self.hs.input_energy = 0
self.hs.config["min_temperature"] = 20
self.assertTrue(self.hs.undersupplied())
self.hs.base_temperature = 20
self.assertFalse(self.hs.undersupplied())
def test_step(self):
self.hs.temperature_loss = 3.0 / 24.0 # per dey
self.hs.config["capacity"] = 2500
self.hs.specific_heat_capacity = 0.002
self.env.step_size = 120 # 20 measurements per hour
self.hs.output_energy = 0
# capacity * temperature_loss
energy_loss_per_hour = (2500 * 0.002) * (3.0 / 24.0)
energy_loss_per_step = energy_loss_per_hour * (self.env.step_size / 3600.0) # divide steps
self.hs.step()
self.assertEqual(self.hs.output_energy, energy_loss_per_step)
class SimulatedHeatStorageTests(unittest.TestCase):
def setUp(self):
self.env = BaseEnvironment()
self.hs = SimulatedHeatStorage(0, env=self.env)
def test_heat_storage_creation(self):
self.assertGreater(self.hs.config['capacity'], 0)
self.assertGreater(self.hs.base_temperature, 0)
self.assertGreater(self.hs.config['min_temperature'], 0)
self.assertGreater(self.hs.config['target_temperature'],
self.hs.config['min_temperature'])
self.assertGreater(self.hs.config['critical_temperature'],
self.hs.config['target_temperature'])
self.assertGreater(self.hs.specific_heat_capacity, 0)
self.assertEqual(self.hs.input_energy, 0)
self.assertEqual(self.hs.output_energy, 0)
self.assertEqual(self.hs.empty_count, 0)
self.assertGreater(self.hs.temperature_loss, 0)
def test_energy_stored(self):
self.hs.input_energy = 2
self.hs.output_energy = 1
self.assertEqual(self.hs.energy_stored(), 2 - 1)
def test_get_required_energy(self):
# target_energy should return the energy needed to fill the storage to
# its target-temperature
self.hs.input_energy = 9
self.hs.output_energy = 1
stored_energy = 9 - 1
# get energy needed to get the energy needed to reach the
# target_temperature from zero
self.hs.base_temperature = 0
self.hs.config['target_temperature'] = 70
self.hs.specific_heat_capacity = 0.002
self.hs.config['capacity'] = 2500
target_energy = 0.002 * 70 * 2500
# get energy needed to fill storage from the stored energy to its target
# temperature
required_energy = target_energy - stored_energy
self.assertAlmostEqual(required_energy, self.hs.get_required_energy())
def test_add_energy(self):
self.hs.input_energy = 0
for i in range(20):
self.hs.add_energy(0.5)
self.assertEqual(self.hs.input_energy, 20 * 0.5)
def test_consume_energy(self):
self.hs.input_energy = 2
self.hs.output_energy = 0
self.hs.consume_energy(2)
self.assertEqual(self.hs.output_energy, 2)
def test_consume_too_much_energy(self):
self.hs.empty_count = 0
self.hs.input_energy = 1
self.hs.consume_energy(2)
self.assertEqual(self.hs.empty_count, 1)
self.assertEqual(self.hs.output_energy, 1)
def test_get_temperatur(self):
base_temperature = 1
self.hs.base_temperature = base_temperature
self.hs.input_energy = 1
self.hs.ouput_energy = 0
energy_stored = 1
self.hs.config['capacity'] = 2500
self.hs.specific_heat_capacity = 0.002
# temperature = energy/capacity
added_temperature = energy_stored / (2500 * 0.002)
temperature = 1 + added_temperature
self.assertEqual(temperature, self.hs.get_temperature())
def test_get_energy_capacity(self):
# max energy the storage can hold:
# energy = capacity*TemperatureDiff
max_temperature_diff = self.hs.config['critical_temperature'] - \
self.hs.base_temperature
max_energy = self.hs.specific_heat_capacity * \
self.hs.config['capacity'] * max_temperature_diff
self.assertEqual(max_energy, self.hs.get_energy_capacity())
def test_undersupplied(self):
self.hs.base_temperature = 0
self.hs.input_energy = 0
self.hs.config['min_temperature'] = 20
self.assertTrue(self.hs.undersupplied())
self.hs.base_temperature = 20
self.assertFalse(self.hs.undersupplied())
def test_step(self):
self.hs.temperature_loss = 3.0 / 24.0 # per dey
self.hs.config['capacity'] = 2500
self.hs.specific_heat_capacity = 0.002
self.env.step_size = 120 # 20 measurements per hour
self.hs.output_energy = 0
# capacity * temperature_loss
energy_loss_per_hour = (2500 * 0.002) * (3.0 / 24.0)
energy_loss_per_step = energy_loss_per_hour * \
(self.env.step_size / 3600.0) # divide steps
self.hs.step()
self.assertEqual(self.hs.output_energy, energy_loss_per_step)
